Saturday

August 23, 2014

August 23, 2014

Total # Posts: 3,930

**Physics**

Two ants race across a table 57 cm long. One travels 4.14 cm/s and the other 3cm/s. when the first crosses the line, how far behind is the second one? Answer in cm.
*August 27, 2012*

**english**

2. The complete predicate of the sentence begins with the word A. great. B. met. C. the. D. sailed
*August 24, 2012*

**us history**

how did the New Deal affected gender roles in American society
*August 24, 2012*

**Math**

Betsy is making a flag. She can choose 3 colors from red white blue and yellow. How many choices does Betsy have? I get 8 or 16. Am I right? Do I count choices that are in diferint order as another choice? r w b r b w Is that 1 choice or 2?
*August 22, 2012*

**HEALTH**

maybe B
*August 22, 2012*

**HEALTH**

yeah is c
*August 22, 2012*

**HEALTH**

yeah
*August 22, 2012*

**rockford**

skyscrapers
*August 22, 2012*

**Physics**

This is not an answer!!! Thankyou so much Elena, that was correct and a BIG BIG help. Thankyou so much!!!! This is not an answer!!!
*August 19, 2012*

**Physics**

While working on her bike, Amanita turns it upside down and gives the front wheel a counterclockwise spin. It spins at approximately constant speed for a few seconds. During this portion of the motion, she records the x and y positions and velocities, as well as the angular ...
*August 19, 2012*

**Economics**

Market analysts often use cross-price elasticities to determine a measure of the “competitiveness” of a particular good in a market. How might cross-price elasticities be used in this manner? What would you expect the cross-price elasticity coefficient to be if the ...
*August 13, 2012*

**Economics**

Indicate how an understanding of demand and of elasticity of demand is useful in analysing the following statement. “If total consumer expenditure remains the same after a new tax is imposed on cigarettes then spending on cigarettes will decrease and spending on other ...
*August 13, 2012*

**Math**

when doing formula p=2L+2w how do you do the problem L=2meters and w=1/2 meters and p=?
*August 13, 2012*

**health**

help please
*August 11, 2012*

**math**

4 boards (1 inch X 8inchs X 6feet} and 3 boards (1 inch X 6 inches x 4feet}= how many board feet? 1 board foot =1 inch by 12 inches x 12inches
*August 9, 2012*

**math**

Thank you so much.
*August 5, 2012*

**math**

The formaula works for a rectangle, but this is a circle. How do you convert sides of a circle? The answer is $176.63, but I can't "make it fit".
*August 5, 2012*

**math**

carpet is $25 per square yard. what is cost of circulare rug 9ft in diameter?
*August 5, 2012*

**math**

Thank you, it works.
*August 5, 2012*

**math**

steel is $50 per cubic foot. What is cost of cone with radius 7.5 inches and 25 inches height?
*August 5, 2012*

**math**

-6x+5+5=47 -6x+10=47 -6x +10-10=47-10 -6x=37 --- --- -6 -6 x=37/-6 x=-37/6 check by putting -6(-37/6)+5+5=47. It will balance
*August 5, 2012*

**chemsitry**

hydrogen burns in oxygen to for water.caculate the volume?
*August 3, 2012*

**chemistry **

i had 2 question left to finish but i cant really undersdand how to do it 9)design an elextrochemical cell using Pb(s) and Mn(s) and theire solutions and answer the following questions: i answerd a-i all that is left is j which is: indicate the substance oxidise,substance ...
*July 24, 2012*

**math**

elimination method -3x+4y=19.5 -3x+y=10.5
*July 22, 2012*

**gemetry**

suppose that A=(58,3,4),B=(-2,18,24),and C=(-2,3,4) is triangle ABC a right triangle
*July 18, 2012*

**Chemistry**

What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6) in 100 g of H2O? Kf for water is 1.86oC/m
*July 17, 2012*

**Chemistry II**

A solution is made by mixing 38.0 mL of ethanol, C2H6O, and 62.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 °C?
*July 17, 2012*

**Chemistry II**

Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as an antimalarial agent. When 3.28 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 8.43 °C. ...
*July 17, 2012*

**MAth**

An ice cream cone is 3 inches wide at the widest point, and is 6 inches tall. What is the volume of the cone in cubic inches? Use Pi
*July 5, 2012*

**math**

Solve the problem by stating the equation you would use to solve and then solving it. Be sure to show all of your work. In a local election, 53,400 people voted. This was a decrease of 7% over the last election. How many people voted in the last election? Round to the nearest ...
*July 2, 2012*

**Chemistry**

How many grams of calcium phosphate are theoretically produced if we start with 10.3 moles of Ca(NO3)2 and 7.6 moles of Li3PO4? Reaction: 3Ca(NO3)2 + 2Li3PO4 → 6LiNO3 + Ca3(PO4)2
*June 26, 2012*

**Chemistry**

Reaction: 3Ca(NO3)2 + 2Li3PO4 → 6LiNO3 + Ca3(PO4)2
*June 26, 2012*

**Chemistry**

How many grams of calcium phosphate are theoretically produced if we start with 10.3 moles of Ca(NO3)2 and 7.6 moles of Li3PO4?
*June 26, 2012*

**history**

9. Elias Howe invented which of the following?
*June 25, 2012*

**AFM (MATH)**

a) Write an equation to represent the volume of an open box constructed by cutting congruent squares from the corners of a 24" by 14" piece of cardboard. b) What is the domain of this model?
*June 24, 2012*

**English12**

Below, you will find a list of sentences. After each sentence, select true if the topic of the statement is suitable to form the basis of a single persuasive paragraph. If the topic of the statement in your textbook is unsuitable for a single persuasive paragraph, select false...
*June 21, 2012*

**reading**

i say sunrise
*June 15, 2012*

**THE AGE OF DISCOVERY TO THE AMERICAN EXPERIMENT**

Thank you
*June 14, 2012*

**Social Studies**

1. For revolutionaries like Sam Adams, the term _______ embraced a way of life, a core ideology, and an uncompromising commitment to liberty and equality. A. independency B. republicanism C. federalism D. Americanism 2. Which of the following best describes the Columbian ...
*June 14, 2012*

**economics**

Determine the sum of money that must be invested today at 9% interest compounded annually to give an investor annuity (annual income) payments of $5,000 per year for 10 years starting 5 years from now.
*June 7, 2012*

**Geomtry**

Find the length of segment CE if AE = 8 inches, EB = 10 inches, and ED = 5 inches.
*June 5, 2012*

**Stat**

The salaries at a corporation are normally distributed with an average salary of $29,000 and a standard deviation of $4,000. What is the probability that an employee will have a salary between $22,520 and $23,480? Enter your answer rounded to exactly 4 decimal places.
*June 5, 2012*

**calculus**

The salaries at a corporation are normally distributed with an average salary of $29,000 and a standard deviation of $4,000. Sixteen percent of the employees make more than Sara. What is Sara's salary? Round your answer to the nearest dollar.
*June 5, 2012*

**Calculus**

Thanks a lot for your help, Count Iblis! :)
*June 5, 2012*

**Calculus**

Evaluate the integral: 16csc(x) dx from pi/2 to pi (and determine if it is convergent or divergent). I know how to find the indefinite integral of csc(x) dx, but I do not know how to evaluate the improper integral, at the following particular step. I know I need to take the ...
*June 5, 2012*

**Reimbursement methodologies**

CMS-1450 There is no form ub-4. there is UB-04 CMS_1450 form for out patient claims UB-92 MANAGED CARE
*June 4, 2012*

**Calculus**

Thank you for your help, Bob. I will be more clear regarding exactly where I do not understand. I know I need to take the limit on the upper bound (e.g. A) as it approaches pi from the left side. After doing so, I get ln|csc(x)+cot(x)|. Approaching pi from the left side, I get...
*June 4, 2012*

**Calculus**

Evaluate the integral: 16csc(x) dx from pi/2 to pi (and determine if it is convergent or divergent). I know how to find the indefinite integral of csc(x) dx, but I do not know how to evaluate the improper integral.
*June 4, 2012*

**math**

Let A=number of animals, D=number of dogs, B=number of bunnies, and C=number of cats. Given: 1/2*A = D 1/4*A = B C = 6 C = B Solution: C=B=6 1/4*A=B=6 1/4*A=6 A=6*4=24 D=1/2*A D=1/2*24 D=12 Therefore, there are 12 dogs.
*June 4, 2012*

**math**

You need to post the options given in the question. For instance, the folloiwng are proper ways to express the teacher-student ratio: 1:20, 1/20, 0.05
*June 4, 2012*

**Probability **

Two number cubes are rolled .both cubes are Labelled to 6. The numers rolled are added . What is the probability of each outcome? A) the sum is 12. B) the sum is less then 4. C) the sum is 7. D) the sum is 2.
*May 29, 2012*

**Probability**

Two cubes are rolled .both cubes are labelled 1 to 6.the number rolled are added. What is the probability of each out come ? a) sum is 12 B)the sum is less than 4. C)the sum is 7. D)the sum is 2.
*May 29, 2012*

**chemistry**

the reaction of N2+3H2-->2NH3 is used to produce ammonia commercially. if 1.40 g of N2 are used in the reaction, how many grams of H2 will be needed?
*May 28, 2012*

**physics**

A 0.93 kg block is shot horizontally from a spring, as in the example above, and travels 0.539 m up a long a frictionless ramp before coming to rest and sliding back down. If the ramp makes an angle of 45.0° with respect to the horizontal, and the spring originally was ...
*May 28, 2012*

**Precal**

What is the standard form of this parabola: -2x^2+16x+24y-224=0 Please Help, parabolas are evil.
*May 25, 2012*

**Maths**

An irregular octagon R has vertices 6, 2), (2, 6), (−1, 5), (−5, 1), (−6, −2), (−2, −6), (1, −5) and (5, −1). Using standard notation, write down the elements of the symmetry group S(R) of R, giving a brief description of the ...
*May 24, 2012*

**Introduction to Ethics& Social Responsibility**

The outlawing of slavery and extending voting rights to women seem to indicate that ethics can have beneficial results. Give an example from the past that indicates a similar result or a current social policy that might be regarded as wrong, which therefore needs to be changed...
*May 24, 2012*

**algebra**

Renee belongs to a bowling club. She scores 50, 52, 55, and 59 on her first four games. She hopes to continue improving according to this pattern. Part A: What are the next four terms in Renee’s sequence? Part B: Write an recursive function rule for the sequence? Part C: ...
*May 23, 2012*

**physics**

Water is to be pumped to the top of a skyscraper, which is 1270 ft high. What gauge pressure is needed in the water line at the base of the building to raise the water to this height?
*May 21, 2012*

**8th grade math**

how do you solve x+1/10= a whole number
*May 21, 2012*

**Calculus**

I need help with these two review calculus problems for my final exam. What is the derivative of a). (5x^2+9x-7)^5 b). Lne^x^3 For a. I got 50x+45(5x^5+9x-7)^4 For b. I got 3x^2 Can you verify please?
*May 21, 2012*

**Calculus**

Thank you so so much! I finally understand what to do! :)
*May 21, 2012*

**Calculus**

I am not sure what to do here: Find the derivative (f '(x) using the limit process a). f(x)= 2x^2+5x+2 find f ' (2) b.) Find the equation of the Tangent Line at (1,5)
*May 21, 2012*

**culture**

Mutually Assured Destruction" is a policy based on which game theory strateg
*May 20, 2012*

**Calculus**

HOw do I find the domain of f(x)= x^2+3x+5?
*May 18, 2012*

**Chemistry**

Pb(NO3)2(aq) 2 x 10-3 M and Na2SO4(aq) 2 x 10-3 M Identify the ions that are present in each solution, and calculate their concentrations. If 1 L of each solution are mixed, will a precipitate be formed? Why?
*May 16, 2012*

**Chemistry**

Pb(NO3)2(aq) + NaSO4(aq) → PbSO4(s)+ 2NaNO3(aq) Identify the ions that are present in each solution, and calculate their concentrations.
*May 16, 2012*

**math**

solve equation. 2p^2-50=0 PLEASE HELP
*May 7, 2012*

**Math**

multiply: -4x^3(6x-3x^4) show your work. please help me!!
*May 2, 2012*

**MATH**

When adding or subtacting polynomials, what is very important to remember? PLEASE HELP
*May 2, 2012*

**Math**

what is 18x^5+3x^3+6x after it is divided by 3x? show your work. PLEASE HELP MEEE
*May 2, 2012*

**Math**

What is the result when (4x^2-5x+7) is added to (x^2-3x-6)? show your work. PLEASE HELP ME!!
*May 2, 2012*

**Math**

multiply: a)(2x+5)(2x-5) b) -4x^3(6x-3x^4) show your work. please help me!!
*May 2, 2012*

**Math**

what is the result when 2x^2+3xy-6 is subtracted from x^2-7xy+2? show your work. please help me!
*May 2, 2012*

**Mathematics**

ok but could you give me an example of what state in terms of h means
*May 2, 2012*

**Mathematics **

a cuboid with length 13cm width 4cm and height h State in terms of h the shaded face of the cuboid. write an expression in terms of h for the volume of the cuboid. if the volume of the cuboid is 286cm cube calculate the height h of the cuboid.
*May 2, 2012*

**trig**

I don't understand how to fnd it though Reiny :( perhaps you could help?
*April 30, 2012*

**trig**

Determine whether the vectors are parallel, perpendicular or neither. 1) v = (4,1), w = (1,-4) 2) v = (2,3), w = (4,6) 3) v = (2,3), w = (3,-3) Please and thanks!
*April 30, 2012*

**trig**

Find the component form for vector v with the given amplitude and direction angle theta. |v|=20.6, theta=102.5deg
*April 30, 2012*

**trig**

Find the dot product of u and v u= 3i+7j v= 11i-5j
*April 30, 2012*

**MATH**

What is the measure of each angle in a Googolgon
*April 30, 2012*

**Statistics**

Suppose it can be assumed that 60 percent of adults favor capital punishment. Find the probability that on a jury of twelve members: a) All will favor capital punishment. b) There will be a tie.
*April 30, 2012*

**Mathematics **

how to find the length of a triangular prism? when the volume is 1470cm cube the height is 10.5cm base 14cm
*April 30, 2012*

**algebra 2**

Sorry, that wasn't one of the choices!!!! Hopefully someone who knows their algebra can help me answer it correctly :-)
*April 27, 2012*

**algebra 2**

Graph the equation. Identify the vertices, co-vertices, and foci of the ellipse. 64x^2+16y^2=1024 This is what i have so far vertices (0,8)(0,-8) foci(0,4√3),(0,-4√3)
*April 27, 2012*

**algebra 2**

Graph the equation. Identify the vertices, foci, and asymptotes of the hyperbola. Y^2/16-x^2/36=1 I think....vertices (0,4),(0,-4) foci??? asymptotes y=+/- 2x/3
*April 27, 2012*

**algebra 2**

Write an equation of the hyperbola with vertices at (–7, 0) and (7, 0) and foci at (–9, 0) and (9, 0)
*April 27, 2012*

**algebra 2**

Write an equation of an ellipse with center at (0, 0), co-vertex at (-4 , 0), and focus at (0, 3). I think its... X^2/16+y^2/9=1
*April 27, 2012*

**algebra 2**

Write an equation of the hyperbola with foci (0, -2) and (0, 2) and vertices of (0, -1) and (0, 1).
*April 27, 2012*

**algebra 2**

Write an equation of the ellipse with center at (0, 0), vertex at (4, 0), and co-vertex at (0, 2)
*April 27, 2012*

**algebra 2**

Thank you very much!!
*April 27, 2012*

**algebra 2**

A swimming pool in the shape of an ellipse is modeled by x^2/324+y^2/196=1, where x and y are measured in feet. Find the shortest distance (in feet) across the center of the pool? i think its 28 feet....
*April 27, 2012*

**algebra 2**

Thank you :-)
*April 27, 2012*

**algebra 2**

What is the equation of an ellipse with a vertex of (0, 3) and a co-vertex of (-2 , 0)? i think its 9x^2+4y^2=36...not sure
*April 27, 2012*

**algebra 2**

Is it (0,±6)?
*April 27, 2012*

**algebra 2**

Thank you again.
*April 27, 2012*

**algebra 2**

Write an equation in standard form for the hyperbola with center (0,0), vertex(4,0) , and focus (8,0). 1) x^2/64-x^2/16=1 2)x^2/16-y^2/64=1 3)y^2/48-x^2/16=1 4)x^2/16-y^2/48=1
*April 27, 2012*

**algebra 2**

That isn't one of the choses... 1) x^2/64-x^2/16=1 2)x^2/16-y^2/64=1 3)y^2/48-x^2/16=1 4)x^2/16-y^2/48=1
*April 26, 2012*

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